Artwork, potentially worth up to £500,000, was stolen an hour after it was confirmed as genuine

Detectives arrested a man last night on suspicion of the theft of a Banksy street sign worth up to £500,000 that was stolen in London less than an hour after being confirmed as a genuine installation.

The Metropolitan police said they had deployed detectives to investigate after a council in south-east London asked them to help find the stolen artwork. The piece – a red stop sign with three military drones on it – appeared on the corner of Commercial Way, Peckham, on Friday morning – with Banksy confirming its credentials just after midday.

Keziah Macharia, 41, was arrested over the death of her son Kobi Dooley-Macharia in Hackney, east London

A 41-year-old woman charged with the murder of her four-year-old son has appeared in court.

Police were called to an address in Montague Road, Hackney, east London, at about 11pm on Wednesday after concerns about the welfare of a child.

In written judgment stating two teenagers can be named, Mrs Justice Yip urges people to avoid ‘vitriol or malice’

The judge in the Brianna Ghey trial has warned those “tempted to direct vitriol or malice” towards the families of her teenage killers that such action would ignore the “express wishes” of the victim’s grieving mother.

Mrs Justice Yip said on Thursday she would lift the reporting restrictions preventing the pair from being named when they are sentenced on 2 February, saying there was a “strong public interest in full and unrestricted reporting of what is plainly an exceptional case”.